We aim to increase our knowledge about the biology and evolution of social behavior in primates, and by extension, in man.

Educational Tours Rooted in Science

This site describes our Primate Biology Program in Sri Lanka. We do scientific studies and offer educational tours observing the fascinating soap-opera lives of monkey societies. Observations take place in the monkeys’ tropical forest home among scenic ruins of temples and palaces of bygone Buddhist and Hindu civilizations.

You benefit from our 45+ years of scientific study, and 25+ years as expedition leaders.

Different tours are tailored for families with children, retirees, students and professionals

This site is also relevant to scientists, students, educators, and anyone interested in primate biology, wildlife conservation and South Asian tropical biodiversity.

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About Us

We are the Association for the Conservation of Primate Diversity (ACPD), under the umbrella of the Smithsonian Institution Primate Biology Program (PBP), based at Polonnaruwa, Sri Lanka (and USA). At Polonnaruwa we are know locally as the “Monkey Camp”.